The Mask of the Sorcerer

[1] Young Sekenre lives in the marshes of the Riverland (implied to be, or at least inspired by, prehistoric Egypt) together with his sister and parents.

Actually, Vashtem is a sorcerer attempting both to deny his identity and hide from his enemies, and his children are pawns in his plot to cheat his dark fate when it ultimately catches up to him.

Things come to a head when Vashtem inexplicably murders his wife and daughter, leaving his son Sekenre to seek vengeance and understanding with the aid of a Sybil who has her own agenda.

A quest through the Underworld brings son and father to their reckoning, with justice meted out to Vashtem only at the cost of Sekenre taking on his curse.

Physically frozen at the age of a child, Sekenre may well live forever, if he can master his terrifying new powers, retain his sense of self and morality against the haunting spirits of his evil predecessors, and avoid being slain by foes inherited and newly gained.